-LRB- CNN -RRB- -- At least 35 people were killed and more than 100 wounded in shootings and explosions across the country on Tuesday , officials with Iraq 's interior ministry told CNN .

Officials said 29 people were killed and 107 wounded in 11 car bomb explosions in nine different parts of Baghdad . Most of killed and wounded were civilians , officials said .

In Falluja , about 60 kilometers -LRB- 37 miles -RRB- west of Baghdad , five people were killed and 12 others were wounded when gunmen attacked al-Tahadi police station in southern Falluja .

In northern Mosul , about 400 kilometers -LRB- 249 miles -RRB- north of Baghdad , a bomb exploded in the convoy of army Gen. Mohammed Khamas , killing him instantly . Khamas was the deputy head of army intelligence department in Mosul .

Iraq has seen a sharp increase in friction between its Shiite and Sunni populations since April , when Iraqi security forces raided a site used by Sunni protesters to demonstrate against the Shiite-led government . Sunnis have felt politically marginalized under Shiite President Nuri al-Maliki , whose government fears it is being targeted by Sunni Islamists involved in fighting in neighboring Syria .

More than 800 Iraqis were killed and 2,030 wounded in violence and acts of terrorism in August , the United Nations said .

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11 car bomb explosions kill 29 , injure 107 in Baghdad , officials tell CNN

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Five killed when gunmen attack a police station in Falluja

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Army general dies when bomb explodes in his convoy in northern Mosul